Keyboard stand



FIG. 1 is a front perspective view of a keyboard stand showing our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a right side elevational view;

FIG. 6 is a top plan view; and

FIG. 7 is a bottom plan view thereof.

FIGS. 2-7 have been shown on a reduced scale with respect to FIG. 1. 

The ornamental design for a keyboard stand, as shown and described. 